Volcanic stone (commonly known as pumice or porous basalt) is a kind of functional environmental protection material. It is a very precious porous stone formed by volcanic glass, minerals and bubbles after the volcanic eruption. Volcanic stone contains dozens of minerals and trace elements such as sodium, magnesium, aluminum, silicon, calcium, titanium, manganese, iron, nickel, cobalt and molybdenum. It is non-radiative and has far-infrared magnetic waves. After the relentless volcanic eruption, thousands of years have passed, Only then did mankind find its value more and more. Now it has expanded its application fields to the fields of construction, water conservancy, grinding, filter material, barbecue charcoal, landscaping, soilless cultivation, and ornamental products, and plays an irreplaceable role in all walks of life.

Effect
Volcanic stone action 1: active water. Volcanic rocks can make the ions in the water active (mainly increase the content of oxygen ions) and can slightly release a-rays and infrared rays, which are good for fish and humans. The disinfection effect of volcanic rocks can not be ignored. Adding them to the aquarium can effectively prevent and treat patients.

The role of volcanic rock 2: stabilizing water quality.

It also includes two parts: PH stability, which can adjust the water that is too acidic or too alkaline to close to neutral automatically. The mineral content is stable. Volcanic rocks have the dual characteristics of releasing mineral elements and absorbing impurities in water. When there is too little or too much, its release and adsorption will occur. The stability of PH value of water quality at the beginning of Arhat and during coloring is crucial.

The role of volcanic rocks 3: color attraction.

Volcanic rocks are bright and natural in color. They have a significant color attraction effect on many ornamental fishes, such as Arhat, Red Horse, Parrot, Red Dragon, Sanhu Cichao, and so on. Especially, Arhat has the feature that its body is close to the color of surrounding objects. The red of volcanic rocks will induce Arhat’s color to become red gradually.

Volcanic stone function 4: adsorption.
Volcanic rocks are porous and have a large surface area. They can adsorb harmful bacteria in water and heavy metal ions such as chromium, arsenic, and even some residual chlorine in water. Placing volcanic rocks in the aquarium can absorb the residue that cannot be filtered out by the filter and keep the water in the tank clean.

The role of volcanic rocks 5: playing with props.
Most of the fish, especially Arhat, are not mixed, they will also be lonely, and Arhat has the habit of playing with stones to build a home, so the lightweight volcanic stone has become a good prop for him to play.

Role of volcanic stone 6: promote metabolism.
The trace elements released by volcanic rocks can promote the metabolism of animal cells, bring out harmful halides in the body, and clean up the dirty things in the cells

Role of volcanic rock 7: optimize growth.
Volcanic rocks can also improve the protein synthesis in animals, enhance the immune capacity, and to a certain extent, increase the mobility of Arhat. This also played a great role in Arhat’s beginning.

Role of volcanic rock 8: culture of nitrifying bacteria.
The high surface area produced by the porosity of volcanic rocks is a good hotbed for cultivating nitrifying bacteria in water, and its surface is positively charged, which is conducive to the fixed growth of microorganisms, and has strong hydrophilicity. The transformation of NO2 and NH4, which are toxic to vertebrates from various reasons in water, into NO3 with relatively low toxicity can greatly improve the water quality.

Role of volcanic rocks 9: matrix materials for the growth of aquatic plants
Due to its porous characteristics, it is beneficial for the water plants to grasp and root and fix the diameter. The various mineral components dissolved from the stone itself are not only conducive to the growth of fish, but also can provide fertilizer for the water plants. In agricultural production, volcanic rock is used as soilless culture substrate, fertilizer and animal feed additive.

Role of volcanic rock 10: grain size of common specifications of aquarium
Specification and particle size of filter material: 5-8mm 10-30mm 30-60mm Common specifications for landscaping: 60-150mm 150-300mm. Compared with other volcanic rocks in other regions, Tengchong and Shipai volcanic rocks in Yunnan are hard volcanic rocks mainly used for roads, bridges, buildings and other purposes. Tengchong and Shipai volcanic rocks in Yunnan have the advantages of light weight, large quantity and unique shape.